Improvement in distilling petroleum



H. FLEURY.

Oil Still.

Patented Oct. 24, 1865.

Witnesses:

Inventor,

42m WWW AM.'FHOTO"LITHO.CO.N,Y. (OSBORNE'S PROCESS) UNITED STATES PATENTOFFICE.

HUOT FLEURY, OF NEW YORK, N. Y.

Specification forming part of Letters Pat To all whom it may concern:

Be it known that I, HUOT FLEURY, of the city and county of New York, inthe State of New York, have invented a new and Improved Mode ofDistilling and Rectifyiu g Petroleum- Oil; and I do hereby declare thatthe followin g is a full and exact description thereof, reference beinghad to the accompanying drawings, and to the letters of reference markedthereon.

The nature of my invention consists in the distillation of petroleum-oilby a vacuum, and its rectification by one single operation, by means ofthe apparatus and process hereinafter described.

A is a boiler in which the crude petroleumoil is first put; B, doublebottom, where the steam of a generator is caused to come; 0,emptying-tube, provided with a cock in order to allow the residue toflow out after the operation is ended; D, tube to allow the stream ofcondensed water to escape; E, tube through which enters the steamintended to heat the boiler A; F, serpentine intended for thecondensation of petroleum-steam; G, a pump intended to cause the vacuumto take place in the boiler A, and which throws back the petroleum-oilthrough thetube H in the vase J, which is filled up to the line I withsulphuric acid at 66.

The oil, by going through the sulphuric acid, leaves in it the tarmatters which would have been dragged along in the distillation. It thengoes through the tube K, in order to pass ent No. 50,571, datedOctober24,1865.

through a solution of potash or of causticsoda, at 410 contained in thevase M, which is filled up to the line L. The potash takes off thesulphuric acid, which would have been dragged along. The oil purified inthat manner runs out through the tube N, Where it has only to bereceived, and then the light to be separated from the thick oil.

The advantage of this process consists, first, in operating thedistillation at a very low temperature, which prevents at first thedecomposition of a certain quantity of oil, which always happens at theend of the distillation through the old process; second, the wholeoperation is made without any manipulation being needed for the treatingof the oil with sulphuric acid or potash, as it used to be donehitherto; third, during all the treatment the oil is entirely screenedfrom the air; fourth, the oil obtained through that process is perfectlywhite, without it being necessary to decolor it.

What I claim as my invention, and desire to secure by Letters Patent, isnot the apparatus itself, but

The new mode or process of distilling and rectifying petroleum-oil, asabove described, taken altogether, and of which the apparatus is only anecessary part.

HUOT FLEURY.

Witnesses:

ARTHUR E. SHELDON, THOMAS KEESAN.

